Technical Tip - Create CAD Planes Perpendicular to Splines, Arcs, and Curves

Technical Tip - Create CAD Planes Perpendicular to Splines, Arcs, and Curves


Verisurf’s powerful CAD engine allows you to create supporting CAD entities useful when Reverse Engineering. Evenly spaced CAD planes are placed on any Drive Curve (Spline, Line, or Arc), for example, to assist in measuring Data when developing curves on unknown contours of a Part.

While a variety of surveys use this application, we are focusing on measuring ports.


  1. For this Technical Tip, we begin with a spline created in several different ways; two examples:
  1. You can export measured Splines to CAD.
  2. You may also create Nurb Splines using Mastercam Wireframe – Spline Manual and then selecting one of the available methods.
  1. After creating a CAD Spline, go to the Analysis Ribbon Bar; in the Surface Points Group, select the Curve to Surface Points command to develop evenly spaced points.
  2. Using the mouse, choose the CAD spline/curve on which to create Planes.
  1. The Chaining dialog appears after selecting your curve(s) /Spline (s); select OK to close the dialog.
  1. The Curve to Points/Vector dialog opens.
  1. Use Length to control the size of the created CAD Plane.
  2. Use Vector Direction (set to Along Edge), Point Order control for choosing Max Distance (distance apart of points on Spline), and choose Save As:  CAD Planes.
  1. Select OK to construct Planes, save on the Active CAD Level.


In this case, after the measurement, you end up with Points placed perpendicular to your Drive Curve (Spline, Line, or Arc); below is an example of Pointclouds measured using Continuous Measurements and the Filter set to Surface Slice. By selecting the Planes created previously, points are measured perpendicular to the Spline (Port).

Need Help?

If additional assistance is still required after performing these steps, please feel free to contact Verisurf Support:

  1. Toll-free technical telephone support: (888)713-7201
  2. Support Email:

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